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ed77714
@ed77714
August 2021
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Примеры по алгебре 7 класс, плиз помогите решить!!!!
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Киса11111112
Задание 1
8а-16в=8(а-2в)
5х³-15х+25х²= 5х(х²-3+5х)
5 votes
Thanks 9
Лера141411
1) 8a - 16b = 8 ( a - 2b )
5x^3 -15x + 25x^2 = 5x ( x^2 - 3 + 25x )
4p ( x - y ) + p^3 ( y - x ) = это увы не знаю(((
2) (2x - 5) ( x+3)=7x+21
2x^2 + 6x - 5x - 15 = 7x + 21
2x^2 + 6x - 5x - 7x = 15 + 21
- 4x^2 = 36
x= 3^2
x= 9
13 votes
Thanks 16
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Answers & Comments
8а-16в=8(а-2в)
5х³-15х+25х²= 5х(х²-3+5х)
5x^3 -15x + 25x^2 = 5x ( x^2 - 3 + 25x )
4p ( x - y ) + p^3 ( y - x ) = это увы не знаю(((
2) (2x - 5) ( x+3)=7x+21
2x^2 + 6x - 5x - 15 = 7x + 21
2x^2 + 6x - 5x - 7x = 15 + 21
- 4x^2 = 36
x= 3^2
x= 9